1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58aa26f6678dfd0a3199ee07875124e1ff9a60dbcf749b229f67f1c19cc7d2bd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/052c0624-c9fc-4276-ac1a-6eb90b4e7377.json and https://artists.proofprofile.net/proofs/artist/052c0624-c9fc-4276-ac1a-6eb90b4e7377.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f131375e381829ad9053df418cbb03075a9149835d7948a4b1ef8b40354ee5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92040428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650ea23b924080eee51c0db7a05f30f783ee16d4bcf39644fc71ddc0281c44bc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2354432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaba1d3bbd51228e9916a1a2f51b3488c64fc04f08d88644a35b09e3ca1ee636. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2314421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccd56bb7a4037f12e1096c7baeb3fca12571acb09cd61a2175c2c975a35fe78. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2374297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f896efc279d922037d3b53f0965c143c100eeb37372d9a2d94542753b1c10db. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2350028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ab62891a635e1a2abede243d4688406a83efc876ec9f77e5d098f11dad22bc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2395391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5394b2e221f3701c5c235ec07edfd5c893a61919676af841188a615f4126a86. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2356121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bed1045b1923f2412b6762e069e1904053097bd5a5fbbeea19281d474b3ac33. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2356124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28be213d2119b973d67fd88807f58fec01a0404900dff4cba2f21b82883ee5bf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2528693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae4f930c150de387b979436e4e696af33f90df717860c4230c4b980c6b33f8c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2528695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f3447f71509f074e4fbc56754c3ee7b3e930ce5a38f50f3a3e6aec91e9a2b6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2528696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8737963a411d7e927f49260da97b8bc6f741e7584e35648ef2cefaecdb2ccd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2528697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8735a887a76919a334baa1a709de230035785eaabbd8a916a48b24810a8e5457. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2528698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1c8a04af484c004b208b56f65f2a3cd9ba84613f6030eedf7fce04ae7e2efa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2528699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1217ab9ae1c7d1a334534c9952457e5aae6cb8ed9d8e470d61588ee1b91d7b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2528700.
Es jugando, pero si quieres no es jugando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7235e10aeadee618dd4ef83ac5c0bb2e89dc4b147ece3fd9e04092b137fe57. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ52002364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641d3cfcc3c1d9ad8cd580c7e379a94e7e7e012c935b516819101b08c1d72bc2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2393669.